package com.hc.springboot.service.impl;

import java.io.File;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;

import com.hc.springboot.service.MailService;

@Component
public class MailServiceImpl implements MailService {

	private final Logger logger = LoggerFactory.getLogger(this.getClass());
	
	@Autowired
	private JavaMailSender mailSender;
	
	@Value("${mail.fromMail.addr}")
	private String from;

	@Override
	public void sendSimpleMail(String to, String subject, String content) {
		MimeMessage message = this.mailSender.createMimeMessage();
		
		try {
			MimeMessageHelper helper = new MimeMessageHelper(message);
			helper.setFrom(from);
			helper.setTo(to);
			helper.setSubject(subject);
			helper.setText(content);
			mailSender.send(message);
			logger.info("简单邮件已经发送。。。");
		} catch (Exception e) {
			e.printStackTrace();
			logger.error("发送简单邮件时发生异常");
		}
	}

	@Override
	public void sendHtmlMail(String to, String subject, String content) {
		MimeMessage message = this.mailSender.createMimeMessage();
		
		//true表示需要创建一个multipart message
		try {
			MimeMessageHelper helper = new MimeMessageHelper(message, true);
			helper.setFrom(from);
			helper.setTo(to);
			helper.setSubject(subject);
			helper.setText(content, true);
			
			this.mailSender.send(message);
			logger.info("html邮件发送成功");
		} catch (MessagingException e) {
			e.printStackTrace();
			logger.error("发送html邮件时发生异常");
		}
	}

	@Override
	public void sendAttachmentsMail(String to, String subject, String content, String filePath) {
		MimeMessage message = mailSender.createMimeMessage();
		
		try {
			MimeMessageHelper helper = new MimeMessageHelper(message, true);
			helper.setFrom(from);
			helper.setTo(to);
			helper.setSubject(subject);
			helper.setText(content, true);
			
			FileSystemResource file = new FileSystemResource(new File(filePath));
			String fileName = filePath.substring(filePath.lastIndexOf(File.separator) + 1);
			helper.addAttachment(fileName, file);
			
			mailSender.send(message);
			logger.info("带附件的邮件发送成功");
		} catch (MessagingException e) {
			logger.error("发送带附件的邮件时发生异常");
			e.printStackTrace();
		}
		
	}

	@Override
	public void sendInlineResourceMail(String to, String subject, String content, String rscPath, String rscId) {
		MimeMessage message = mailSender.createMimeMessage();
		
		try {
			MimeMessageHelper helper = new MimeMessageHelper(message, true);
			helper.setFrom(from);
			helper.setTo(to);
			helper.setSubject(subject);
			helper.setText(content, true);
			
			FileSystemResource file = new FileSystemResource(new File(rscPath));
			helper.addInline(rscId, file);
			
			mailSender.send(message);
			logger.info("嵌入静态资源的邮件发送成功！");
		} catch (MessagingException e) {
			logger.error("发送嵌入静态资源的邮件时发生异常");
			e.printStackTrace();
		}
		
	}
	
}
